Tetra Whisper Aquarium Air Pumps (UL Listed)

Pumps are 115V 60Hz and UL-approved for both fresh and marine water. Minimal noise, maximum air flow. The Whisper Air Pump's dome shape actually flattens sound wave frequencies In addition, each model features sound-dampening chambers designed specifically for that model. And the air pump's rubber feet and suspended motor prevent sound waves from reflecting off surfaces such as tables and shelves.